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BRPI0703562A2 - processes and systems for pulping lignocellulosic materials - Google Patents

processes and systems for pulping lignocellulosic materials

Info

Publication number
BRPI0703562A2
BRPI0703562A2 BRPI0703562-4A BRPI0703562A BRPI0703562A2 BR PI0703562 A2 BRPI0703562 A2 BR PI0703562A2 BR PI0703562 A BRPI0703562 A BR PI0703562A BR PI0703562 A2 BRPI0703562 A2 BR PI0703562A2
Authority
BR
Brazil
Prior art keywords
digester
chemical
chips
pulp
washed
Prior art date
Application number
BRPI0703562-4A
Other languages
Portuguese (pt)
Inventor
Johann Aichinger
Original Assignee
Andritz Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38468660&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BRPI0703562(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz Inc filed Critical Andritz Inc
Publication of BRPI0703562A2 publication Critical patent/BRPI0703562A2/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

PROCESSOS E SISTEMAS PARA A TRANSFORMAçãO EM POLPA DE MATERIAIS LIGNOCELULóSICOS. Um recipiente de não-compressão, tal como um digestor, é empregado para o pré-condicionamento químico das lascas seguido por um dispositivo de fibração para separar as lascas pré-condicionadas em feixes de fibra, que são então lavados antes de um tratamento químico de alta consistência. O digestor pode ser um tal como usado em transformação em polpa química convencional de madeira com ou sem telas para a extração de agente químico. Se extraído este agente químico poderia ser recirculado para o digestor com tratamento na alça de circulação tal como aquecimento ou a adição de diluição ou outros agentes químicos. O digestor pode ser hidráulico ou de fase de vapor (que está contido em um espaço de vapor dentro do digestor) e opera de uma maneira ou contínua ou em batelada. O digestor permite a descarga de material sem o uso de um mecanismo de pressionamento. O material tratado no digestor é então desfibrado para converter as lascas em feixes de fibra contínuos, que são então lavados e têm água retirada. A polpa lavada e sem água é então tratada com agentes químicos peróxido alcalino para desenvolver brilho e outras propriedades de polpa.PROCESSES AND SYSTEMS FOR PULP TRANSFORMATION OF LIGNOCELLULOSIC MATERIALS. A non-compression vessel, such as a digester, is employed for the chemical preconditioning of the chips followed by a fibrating device to separate the preconditioned chips into fiber bundles, which are then washed prior to chemical treatment of the chips. High consistency. The digester may be one as used in transformation into conventional wood pulp with or without chemical agent extraction screens. If extracted this chemical could be recirculated to the digester with treatment in the circulation loop such as heating or the addition of dilution or other chemical agents. The digester may be hydraulic or vapor phase (which is contained in a vapor space within the digester) and operates in a continuous or batch manner. The digester allows material discharge without the use of a pressing mechanism. The treated material in the digester is then defibrated to convert the chips into continuous fiber bundles, which are then washed and water removed. The washed, waterless pulp is then treated with alkaline peroxide chemicals to develop gloss and other pulp properties.

BRPI0703562-4A 2006-08-10 2007-08-10 processes and systems for pulping lignocellulosic materials BRPI0703562A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83667806P 2006-08-10 2006-08-10
US11/826,837 US8262851B2 (en) 2006-08-10 2007-07-18 Processes and systems for the pulping of lignocellulosic materials

Publications (1)

Publication Number Publication Date
BRPI0703562A2 true BRPI0703562A2 (en) 2009-04-07

Family

ID=38468660

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0703562-4A BRPI0703562A2 (en) 2006-08-10 2007-08-10 processes and systems for pulping lignocellulosic materials

Country Status (8)

Country Link
US (1) US8262851B2 (en)
JP (1) JP5491687B2 (en)
CN (1) CN101122101B (en)
AU (1) AU2007203647B2 (en)
BR (1) BRPI0703562A2 (en)
CA (1) CA2596796C (en)
RU (1) RU2440449C2 (en)
SE (1) SE531545C2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040200586A1 (en) * 2002-07-19 2004-10-14 Martin Herkel Four stage alkaline peroxide mechanical pulping
CN1250811C (en) * 2001-07-19 2006-04-12 安德里兹有限公司 Four stage alkaline peroxide mechanical pulping
DE102007022754A1 (en) * 2007-05-11 2008-11-13 Voith Patent Gmbh Method for reducing the heavy metal content of lignocellulosic raw material
FI121310B (en) * 2007-10-17 2010-09-30 Kemira Oyj Process for treating lignocellulosic materials containing pectin
US8734611B2 (en) * 2008-03-12 2014-05-27 Andritz Inc. Medium consistency refining method of pulp and system
CN102076911B (en) 2008-06-20 2013-03-13 国际纸业公司 Composition and recording sheet with improved optical properties
CN102459753A (en) 2009-06-15 2012-05-16 阿科玛股份有限公司 Alkaline peroxide treatment of rejects in an integrated neutral-alkaline paper mill
FI121887B (en) * 2009-08-07 2011-05-31 Upm Kymmene Corp Mechanical pulp as well as system and method for manufacturing the mechanical pulp
US8673113B2 (en) 2010-06-09 2014-03-18 The University Of British Columbia Process for reducing specific energy demand during refining of thermomechanical and chemi-thermomechanical pulp
US9151000B2 (en) * 2010-09-17 2015-10-06 Titan Wood Limited Treatment of wood pieces
CN101967763A (en) * 2010-09-27 2011-02-09 湖南骏泰浆纸有限责任公司 Method for treating wood chips for digestion
JP6129323B2 (en) * 2012-09-27 2017-05-17 アンドリッツ インコーポレーテッド Chemical treatment of lignocellulosic fiber bundle materials and related methods and systems
EP3268534B1 (en) 2015-03-11 2019-01-23 Andritz, Inc. Processes and systems for the pulping of lignocellulosic materials
JP2017535690A (en) * 2015-12-11 2017-11-30 オブスチェストヴォ ス オグラニチェンノイ オトヴェツトヴェンノスチュ “ツイン テクノロジー カンパニー”Ｏｂｓｈｅｓｔｖｏ Ｓ Ｏｇｒａｎｉｃｈｅｎｎｏｙ Ｏｔｖｅｔｓｔｖｅｎｎｏｓｔｙｕ ‘Ｔｗｉｎ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏｍｐａｎｙ’ Cellulose production method
CA3036697C (en) * 2016-09-14 2020-03-24 Fpinnovations Method of transforming high consistency pulp fibers into pre-dispersed semi-dry and dry fibrous materials
CA3066949A1 (en) * 2017-06-20 2018-12-27 Basf Se Method of increasing the throughput and/or decreasing energy usage of a pulping process
CN108714953B (en) * 2018-05-21 2020-12-15 阜阳市恒祥生产力促进有限公司 Papermaking production process

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219282A (en) * 1963-06-19 1965-11-23 Bauer Bros Co Disc type refiner unit having plug wiper
SE436368B (en) 1979-01-12 1984-12-03 Sunds Defibrator METHODS OF MANUFACTURING BLEACHED, MECHANICAL, CHEMICAL MECHANICAL AND SEMI-CHEMICAL MASSES OF LIGNOCELLULOSE FIBER MATERIALS
JPS56169890A (en) * 1980-05-29 1981-12-26 Mitsubishi Gas Chemical Co Hydrogen peroxide refiner bleaching of high yield pulp
CA1240456A (en) 1983-10-20 1988-08-16 Kamyr, Inc. Mechanical pulping
SE8501246L (en) 1985-03-13 1986-09-14 Eka Ab SET TO MANUFACTURE IN BLEACH, CHEMICAL MECHANICAL AND SEMI-CHEMICAL FIBER MASS USING ONE-STEP IMAGRATION
US5002635A (en) 1985-09-20 1991-03-26 Scott Paper Company Method for producing pulp using pre-treatment with stabilizers and refining
US4718980A (en) * 1985-12-30 1988-01-12 Weyerhaeuser Company Interstage treatment of mechanical pulp
FR2604197B1 (en) * 1986-09-23 1988-11-18 Atochem PROCESS FOR BLEACHING LIGNOCELLULOSIC MATERIALS.
SE466060C (en) * 1990-02-13 1995-09-11 Moelnlycke Ab Absorbent chemitermomechanical mass and preparation thereof
SU1724763A1 (en) * 1990-07-10 1992-04-07 Центральный научно-исследовательский институт бумаги Method of producing bleached wood pulp
CA2057231A1 (en) * 1991-01-07 1992-07-08 Ulrike Tschirner Method of pretreating lignocellulosic materials prior to alkaline peroxide high yield pulping
ES2209420T3 (en) * 1998-04-17 2004-06-16 Alberta Research Council, Inc. LIGNOCELLULOSIC PULP PRODUCTION METHOD FROM NON-WOOD SPECIES.
US6770168B1 (en) 1999-02-15 2004-08-03 Kiram Ab Process for oxygen pulping of lignocellulosic material and recorvery of pulping chemicals
US6881299B2 (en) * 2001-05-16 2005-04-19 North American Paper Corporation Refiner bleaching with magnesium oxide and hydrogen peroxide
US20040200586A1 (en) 2002-07-19 2004-10-14 Martin Herkel Four stage alkaline peroxide mechanical pulping
CN1250811C (en) * 2001-07-19 2006-04-12 安德里兹有限公司 Four stage alkaline peroxide mechanical pulping
US20030145962A1 (en) * 2001-08-02 2003-08-07 Glens Falls Group, Llc. System and for improving the movement and discharge of material from vessels
US7384502B2 (en) * 2002-12-24 2008-06-10 Nippon Paper Industries Co., Ltd. Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness
CN1839227B (en) 2003-10-02 2011-08-17 安德里兹有限公司 Multi-stage AP mechanical pulping process with refiner flow line treatment
CN100344829C (en) * 2003-12-26 2007-10-24 华泰集团有限公司 Technology for preparing alkali hydrogen peroxide chemical machinery pulping
FI126694B (en) 2005-12-02 2017-04-13 Metsä Board Oyj Chemical-mechanical pulp and process for producing chemical-mechanical pulp

Also Published As

Publication number Publication date
JP5491687B2 (en) 2014-05-14
RU2007130557A (en) 2009-02-20
AU2007203647B2 (en) 2011-10-06
US20080035286A1 (en) 2008-02-14
SE531545C2 (en) 2009-05-19
CA2596796A1 (en) 2008-02-10
US8262851B2 (en) 2012-09-11
RU2440449C2 (en) 2012-01-20
AU2007203647A1 (en) 2008-02-28
CA2596796C (en) 2015-11-24
JP2008045262A (en) 2008-02-28
SE0701843L (en) 2008-02-11
CN101122101B (en) 2012-01-04
CN101122101A (en) 2008-02-13

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.